diff --git a/src/SerializedTypes.cpp b/src/SerializedTypes.cpp
new file mode 100644
index 0000000000..793192e194
--- /dev/null
+++ b/src/SerializedTypes.cpp
@@ -0,0 +1,101 @@
+
+#include <boost/lexical_cast.hpp>
+
+#include "SerializedTypes.h"
+#include "SerializedObject.h"
+
+STUInt8* STUInt8::construct(SerializerIterator& u)
+{
+	return new STUInt8(u.get8());
+}
+
+std::string STUInt8::getText() const
+{
+	return boost::lexical_cast<std::string>(value);
+}
+
+STUInt16* STUInt16::construct(SerializerIterator& u)
+{
+	return new STUInt16(u.get16());
+}
+
+std::string STUInt16::getText() const
+{
+	return boost::lexical_cast<std::string>(value);
+}
+
+STUInt32* STUInt32::construct(SerializerIterator& u)
+{
+	return new STUInt32(u.get32());
+}
+
+std::string STUInt32::getText() const
+{
+	return boost::lexical_cast<std::string>(value);
+}
+
+STUInt64* STUInt64::construct(SerializerIterator& u)
+{
+	return new STUInt64(u.get64());
+}
+
+std::string STUInt64::getText() const
+{
+	return boost::lexical_cast<std::string>(value);
+}
+
+STUHash160* STUHash160::construct(SerializerIterator& u)
+{
+	return new STUHash160(u.get160());
+}
+
+std::string STUHash160::getText() const
+{
+	return value.GetHex();
+}
+
+STUHash256* STUHash256::construct(SerializerIterator& u)
+{
+	return new STUHash256(u.get256());
+}
+
+std::string STUHash256::getText() const
+{
+	return value.GetHex();
+}
+
+static std::string hex(const std::vector<unsigned char>& value)
+{
+	int dlen=value.size(), i=0;
+	char psz[dlen*2 + 1];
+	for(std::vector<unsigned char>::const_iterator it=value.begin(), end=value.end(); it!=end; ++it)
+		sprintf(psz + 2*(i++), "%02X", *it);
+	return std::string(psz, psz + value.size()*2);
+}
+
+std::string STUVariableLength::getText() const
+{
+	return hex(value);
+}
+
+STUVariableLength* STUVariableLength::construct(SerializerIterator& u)
+{
+	return new STUVariableLength(u.getVL());
+}
+
+std::string STUTaggedList::getText() const
+{
+	std::string ret;
+	for(std::list<TaggedListItem>::const_iterator it=value.begin(); it!=value.end(); ++it)
+	{
+		ret+=boost::lexical_cast<std::string>(it->first);
+		ret+=",";
+		ret+=hex(it->second);
+	}
+	return ret;
+}
+
+STUTaggedList* STUTaggedList::construct(SerializerIterator& u)
+{
+	return new STUTaggedList(u.getTaggedList());
+}
diff --git a/src/SerializedTypes.h b/src/SerializedTypes.h
index 1a454072f6..e9280e5fc1 100644
--- a/src/SerializedTypes.h
+++ b/src/SerializedTypes.h
@@ -26,10 +26,8 @@ public:
 	virtual SerializedType* duplicate() const { return new SerializedType(); }
 
 	virtual std::string getText() const { return std::string(); }
-	virtual std::string getSQL() const { return std::string(); }
 
-	virtual std::vector<unsigned char> serialize() const;
-	virtual int add(std::vector<unsigned char>&) const { return 0; }
+	virtual void add(Serializer& s) const { return; }
 
 	SerializedType* new_clone(const SerializedType& s) { return s.duplicate(); }
 	void delete_clone(const SerializedType* s) { boost::checked_delete(s); }
@@ -43,14 +41,13 @@ protected:
 public:
 
 	STUInt8(unsigned char v=0) : value(v) { ; }
-	static STUInt8* construct(const std::vector<unsigned char>&, int start_offset, int& length_consumed);
+	static STUInt8* construct(SerializerIterator&);
 
 	int getLength() const { return 1; }
 	SerializedTypeID getType() const { return STI_UINT8; }
 	STUInt8 *duplicate() const { return new STUInt8(value); }
 	std::string getText() const;
-	std::string getSQL() const;
-	virtual int add(std::vector<unsigned char>&) const;
+	virtual void add(Serializer& s) const { s.add8(value); }
 
 	unsigned char getValue() const { return value; }
 	void setValue(unsigned char v) { value=v; }
@@ -67,14 +64,13 @@ protected:
 public:
 
 	STUInt16(uint16 v=0) : value(v) { ; }
-	static STUInt16* construct(const std::vector<unsigned char>&, int start_offset, int& length_consumed);
+	static STUInt16* construct(SerializerIterator&);
 
 	int getLength() const { return 2; }
 	SerializedTypeID getType() const { return STI_UINT16; }
 	STUInt16 *duplicate() const { return new STUInt16(value); }
 	std::string getText() const;
-	std::string getSQL() const;
-	virtual int add(std::vector<unsigned char>&) const;
+	virtual void add(Serializer& s) const { s.add16(value); }
 
 	uint16 getValue() const { return value; }
 	void setValue(uint16 v) { value=v; }
@@ -91,14 +87,13 @@ protected:
 public:
 
 	STUInt32(uint32 v=0) : value(v) { ; }
-	static STUInt32* construct(const std::vector<unsigned char>&, int start_offset, int& length_consumed);
+	static STUInt32* construct(SerializerIterator&);
 
 	int getLength() const { return 4; }
 	SerializedTypeID getType() const { return STI_UINT32; }
 	STUInt32 *duplicate() const { return new STUInt32(value); }
 	std::string getText() const;
-	std::string getSQL() const;
-	virtual int add(std::vector<unsigned char>&) const;
+	virtual void add(Serializer& s) const { s.add32(value); }
 
 	uint32 getValue() const { return value; }
 	void setValue(uint32 v) { value=v; }
@@ -115,14 +110,13 @@ protected:
 public:
 
 	STUInt64(uint64 v=0) : value(v) { ; }
-	static STUInt64* construct(const std::vector<unsigned char>&, int start_offset, int& length_consumed);
+	static STUInt64* construct(SerializerIterator&);
 
 	int getLength() const { return 8; }
 	SerializedTypeID getType() const { return STI_UINT64; }
 	STUInt64 *duplicate() const { return new STUInt64(value); }
 	std::string getText() const;
-	std::string getSQL() const;
-	virtual int add(std::vector<unsigned char>&) const;
+	virtual void add(Serializer& s) const { s.add64(value); }
 
 	uint64 getValue() const { return value; }
 	void setValue(uint64 v) { value=v; }
@@ -140,14 +134,13 @@ public:
 
 	STUHash160(const uint160& v) : value(v) { ; }
 	STUHash160() { ; }
-	static STUHash160* construct(const std::vector<unsigned char>&, int start_offset, int& length_consumed);
+	static STUHash160* construct(SerializerIterator&);
 
 	int getLength() const { return 20; }
 	SerializedTypeID getType() const { return STI_HASH160; }
 	STUHash160 *duplicate() const { return new STUHash160(value); }
 	std::string getText() const;
-	std::string getSQL() const;
-	virtual int add(std::vector<unsigned char>&) const;
+	virtual void add(Serializer& s) const { s.add160(value); }
 
 	const uint160& getValue() const { return value; }
 	void setValue(const uint160& v) { value=v; }
@@ -165,14 +158,13 @@ public:
 
 	STUHash256(const uint256& v) : value(v) { ; }
 	STUHash256() { ; }
-	static STUHash256* construct(const std::vector<unsigned char>&, int start_offset, int& length_consumed);
+	static STUHash256* construct(SerializerIterator&);
 
 	int getLength() const { return 32; }
 	SerializedTypeID getType() const { return STI_HASH256; }
 	STUHash256 *duplicate() const { return new STUHash256(value); }
 	std::string getText() const;
-	std::string getSQL() const;
-	virtual int add(std::vector<unsigned char>&) const;
+	virtual void add(Serializer& s) const { s.add256(value); }
 
 	const uint256& getValue() const { return value; }
 	void setValue(const uint256& v) { value=v; }
@@ -190,14 +182,13 @@ public:
 
 	STUVariableLength(const std::vector<unsigned char>& v) : value(v) { ; }
 	STUVariableLength() { ; }
-	static STUVariableLength* construct(const std::vector<unsigned char>&, int start_offset, int& length_consumed);
+	static STUVariableLength* construct(SerializerIterator&);
 
 	int getLength() const;
 	SerializedTypeID getType() const { return STI_VL; }
 	STUVariableLength *duplicate() const { return new STUVariableLength(value); }
 	std::string getText() const;
-	std::string getSQL() const;
-	virtual int add(std::vector<unsigned char>&) const;
+	virtual void add(Serializer& s) const { s.addVL(value); }
 
 	const std::vector<unsigned char>& peekValue() const { return value; }
 	std::vector<unsigned char>& peekValue() { return value; }
@@ -217,14 +208,13 @@ public:
 
 	STUTaggedList(const std::list<TaggedListItem>& v) : value(v) { ; }
 	STUTaggedList() { ; }
-	static STUTaggedList* construct(const std::vector<unsigned char>&, int start_offset, int& length_consumed);
+	static STUTaggedList* construct(SerializerIterator&);
 
 	int getLength() const;
 	SerializedTypeID getType() const { return STI_TL; }
 	STUTaggedList *duplicate() const { return new STUTaggedList(value); }
 	std::string getText() const;
-	std::string getSQL() const;
-	virtual int add(std::vector<unsigned char>&) const;
+	virtual void add(Serializer& s) const { s.addTaggedList(value); }
 
 	const std::list<TaggedListItem>& peekValue() const { return value; }
 	std::list<TaggedListItem>& peekValue() { return value; }
diff --git a/src/Serializer.cpp b/src/Serializer.cpp
index 6c083d7075..9d7351e95e 100644
--- a/src/Serializer.cpp
+++ b/src/Serializer.cpp
@@ -257,6 +257,20 @@ int Serializer::addTaggedList(const std::list<TaggedListItem>& list)
 	return ret;
 }
 
+int Serializer::addTaggedList(const std::vector<TaggedListItem>& list)
+{
+	int size=list.size();
+	if(size>255) return -1;
+	int ret=add8(size);
+	if(size!=0)
+		for(std::vector<TaggedListItem>::const_iterator it=list.begin(); it!=list.end(); ++it)
+		{
+			add8(it->first);
+			addVL(it->second);
+		}
+	return ret;
+}
+
 bool Serializer::getVL(std::vector<unsigned char>& objectVL, int offset, int& length) const
 {
 	int b1;
diff --git a/src/Serializer.h b/src/Serializer.h
index 3f7efd5a1e..702be674f6 100644
--- a/src/Serializer.h
+++ b/src/Serializer.h
@@ -38,6 +38,7 @@ class Serializer
 	int addVL(const std::vector<unsigned char> &vector);
 	int addVL(const void *ptr, int len);
 	int addTaggedList(const std::list<TaggedListItem>&);
+	int addTaggedList(const std::vector<TaggedListItem>&);
 
 	// disassemble functions
 	bool get8(int&, int offset) const;